3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(array(1, 2), array(3, 4), array(5)); function get_combinations($arrays) { $result = array(array()); $count = count($arrays); if($count > 2) { $array_merg = get_combinations(array_slice($arrays, 1)); } else { $array_merg = $arrays[1]; } print_r($arrays[0]); print_r($array_merg); $tmp = array(); foreach($arrays[0] as $arele1) { foreach($array_merg as $arele2) { if(is_array($arele2)) { $tmp[] = array_unshift($arele2,$arele1); } else { $tmp[] = array($arele1,$arele2); } } } print_r($tmp); return $tmp; } var_dump(get_combinations($a));

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0070.01416.63
8.3.50.0120.00822.04
8.3.40.0110.01118.71
8.3.30.0070.01019.13
8.3.20.0000.00720.34
8.3.10.0000.00723.48
8.3.00.0060.00319.38
8.2.180.0150.00018.04
8.2.170.0110.00322.96
8.2.160.0030.01020.36
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0110.00426.16
8.2.120.0000.00722.25
8.2.110.0090.00022.08
8.2.100.0030.00917.78
8.2.90.0000.00819.14
8.2.80.0040.00418.04
8.2.70.0030.00517.63
8.2.60.0000.00918.05
8.2.50.0030.00618.07
8.2.40.0030.00518.28
8.2.30.0000.00818.03
8.2.20.0050.00317.68
8.2.10.0000.00818.19
8.2.00.0040.00417.80
8.1.280.0100.01025.92
8.1.270.0080.00023.73
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00623.93
8.1.230.0000.01119.02
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0080.00217.35
8.1.190.0070.00017.55
8.1.180.0000.00818.10
8.1.170.0000.00818.64
8.1.160.0050.00222.02
8.1.150.0050.00318.63
8.1.140.0040.00417.45
8.1.130.0000.00717.75
8.1.120.0040.00417.38
8.1.110.0030.00617.40
8.1.100.0050.00217.45
8.1.90.0050.00217.47
8.1.80.0040.00417.53
8.1.70.0000.00717.36
8.1.60.0080.00017.54
8.1.50.0040.00417.48
8.1.40.0000.00717.54
8.1.30.0000.00817.58
8.1.20.0040.00417.62
8.1.10.0040.00417.56
8.1.00.0000.00817.51
8.0.300.0070.00018.77
8.0.290.0040.00417.05
8.0.280.0000.00718.49
8.0.270.0000.00717.26
8.0.260.0000.00717.26
8.0.250.0000.00716.96
8.0.240.0030.00316.89
8.0.230.0070.00016.86
8.0.220.0030.00316.86
8.0.210.0040.00416.88
8.0.200.0060.00016.94
8.0.190.0040.00416.98
8.0.180.0040.00416.96
8.0.170.0000.00716.94
8.0.160.0030.00316.93
8.0.150.0030.00516.77
8.0.140.0000.00816.74
8.0.130.0050.00313.30
8.0.120.0030.00516.93
8.0.110.0060.00316.85
8.0.100.0040.00416.68
8.0.90.0000.00716.70
8.0.80.0070.00816.94
8.0.70.0070.00016.71
8.0.60.0040.00416.84
8.0.50.0040.00416.81
8.0.30.0080.01117.03
8.0.20.0130.01017.40
8.0.10.0050.00216.90
8.0.00.0110.00916.86
7.4.330.0020.00215.00
7.4.320.0030.00316.61
7.4.300.0030.00316.59
7.4.290.0040.00416.44
7.4.280.0000.00716.51
7.4.270.0070.00016.42
7.4.260.0000.00816.63
7.4.250.0030.00316.46
7.4.240.0030.00316.62
7.4.230.0000.00716.37
7.4.220.0080.00916.57
7.4.210.0050.01116.57
7.4.200.0050.00316.30
7.4.190.0050.00316.37
7.4.160.0060.00916.41
7.4.150.0120.00617.40
7.4.140.0130.00817.86
7.4.130.0050.01216.62
7.4.120.0100.00816.58
7.4.110.0080.01116.59
7.4.100.0130.00416.46
7.4.90.0130.00616.42
7.4.80.0090.01219.39
7.4.70.0080.00816.53
7.4.60.0100.00616.44
7.4.50.0000.00816.38
7.4.40.0090.00922.77
7.4.30.0060.01116.48
7.4.00.0100.00514.97
7.3.330.0000.00513.38
7.3.320.0060.00013.13
7.3.310.0080.00016.37
7.3.300.0030.00316.32
7.3.290.0110.00316.32
7.3.280.0100.00516.31
7.3.270.0080.00817.40
7.3.260.0200.00316.65
7.3.250.0130.00916.65
7.3.240.0170.00716.39
7.3.230.0070.01616.61
7.3.210.0130.00416.28
7.3.200.0070.01019.39
7.3.190.0110.01116.42
7.3.180.0060.00916.50
7.3.170.0160.00316.39
7.3.160.0130.00316.31
7.3.120.0060.01114.82
7.3.110.0110.00715.00
7.3.100.0000.01014.70
7.3.90.0000.01015.11
7.3.80.0090.00015.07
7.3.70.0070.00714.90
7.3.60.0070.00714.76
7.3.50.0060.00914.62
7.3.40.0100.00314.95
7.3.30.0090.00314.57
7.3.20.0100.00316.65
7.3.10.0060.00316.53
7.3.00.0070.00716.48
7.2.330.0060.01116.38
7.2.320.0100.00716.74
7.2.310.0070.01016.58
7.2.300.0080.00816.92
7.2.290.0100.00716.73
7.2.250.0040.01514.82
7.2.240.0100.01015.15
7.2.230.0120.00315.10
7.2.220.0150.00315.09
7.2.210.0030.00915.02
7.2.200.0070.00715.12
7.2.190.0000.01415.00
7.2.180.0060.01215.15
7.2.170.0040.01115.08
7.2.00.0080.00519.46
7.1.330.0040.01115.94
7.1.320.0120.00615.89
7.1.310.0000.01015.49
7.1.300.0060.00315.88
7.1.290.0080.00315.83
7.1.280.0090.00315.89
7.1.270.0030.01015.87
7.1.260.0070.00715.79
7.1.100.0040.00717.98
7.1.70.0110.00817.18
7.1.60.0100.01619.33
7.1.50.0070.01517.02
7.1.00.0070.07022.31
7.0.200.0100.00615.01
7.0.140.0070.06722.09
7.0.60.0170.06319.97
7.0.50.0070.03717.89
7.0.40.0070.05320.04
7.0.30.0300.04720.10
7.0.20.0270.05720.04
7.0.10.0000.05320.24
7.0.00.0070.06720.05
5.6.280.0130.06321.13
5.6.210.0100.08320.51
5.6.200.0070.06318.12
5.6.190.0070.04020.63
5.6.180.0070.08320.42
5.6.170.0300.07720.45
5.6.160.0000.08020.46
5.6.150.0100.07318.21
5.6.140.0130.04718.16
5.6.130.0030.05018.14
5.6.120.0070.04020.99
5.6.110.0070.08021.01
5.6.100.0100.08721.13
5.6.90.0130.06021.00
5.6.80.0030.05320.48
5.6.70.4470.03320.39
5.5.350.0070.09320.46
5.5.340.0070.04717.95
5.5.330.0000.09020.19
5.5.320.0270.05720.27
5.5.310.0370.06020.35
5.5.300.0100.04317.97
5.5.290.0030.04018.04
5.5.280.0200.06720.77
5.5.270.0100.07020.76
5.5.260.0130.07720.82
5.5.250.0100.04720.61
5.5.240.0200.07020.28
5.4.450.0870.03719.45
5.4.440.1100.05019.61
5.4.430.0800.06719.33
5.4.420.0970.05019.48
5.4.410.0770.06019.50
5.4.400.0900.05319.15
5.4.390.0770.06018.87
5.4.380.0300.05718.81
5.4.370.0230.05318.56
5.4.360.0270.05018.81
5.4.350.0230.06018.73
5.4.340.0230.07018.63
5.4.320.0090.04212.50
5.4.310.0100.03812.50
5.4.300.0090.04012.50
5.4.290.0070.04312.50
5.4.280.0120.04612.38
5.4.270.0110.05312.38
5.4.260.0110.04912.37
5.4.250.0140.04012.38
5.4.240.0140.04312.37
5.4.230.0120.05012.36
5.4.220.0060.04712.36
5.4.210.0110.03512.36
5.4.200.0100.04012.36
5.4.190.0040.04012.36
5.4.180.0090.03612.36
5.4.170.0090.03912.37
5.4.160.0080.04412.36
5.4.150.0230.07212.36
5.4.140.0110.05312.04
5.4.130.0170.06812.03
5.4.120.0250.06311.99
5.4.110.0250.10011.98
5.4.100.0090.04011.99
5.4.90.0130.05211.98
5.4.80.0090.04011.98
5.4.70.0120.05311.98
5.4.60.0080.05811.98
5.4.50.0120.05311.98
5.4.40.0150.05611.97
5.4.30.0090.05711.96
5.4.20.0120.06611.97
5.4.10.0220.10111.97
5.4.00.0120.05011.46
5.3.290.0110.04412.80
5.3.280.0160.05812.71
5.3.270.0170.06012.72
5.3.260.0110.06412.72
5.3.250.0110.06012.72
5.3.240.0140.07712.72
5.3.230.0160.06012.71
5.3.220.0100.04912.68
5.3.210.0130.06212.68
5.3.200.0110.04612.68
5.3.190.0130.07012.68
5.3.180.0260.07712.68
5.3.170.0150.04812.67
5.3.160.0100.04812.67
5.3.150.0090.06812.67
5.3.140.0140.05712.66
5.3.130.0110.06112.65
5.3.120.0090.07612.65
5.3.110.0080.06412.66
5.3.100.0110.05812.12
5.3.90.0150.06912.08
5.3.80.0130.04712.07
5.3.70.0210.07112.08
5.3.60.0130.04612.07
5.3.50.0140.07412.00
5.3.40.0110.06512.00
5.3.30.0080.07411.95
5.3.20.0080.06611.75
5.3.10.0180.04911.70
5.3.00.0220.06011.70
5.2.170.0180.0549.19
5.2.160.0090.0439.19
5.2.150.0140.0879.19
5.2.140.0080.0589.19
5.2.130.0180.0579.14
5.2.120.0020.0609.14
5.2.110.0100.0509.15
5.2.100.0120.0509.15
5.2.90.0160.0489.14
5.2.80.0180.0469.14
5.2.70.0100.0379.14
5.2.60.0040.0349.10
5.2.50.0080.0329.07
5.2.40.0080.0309.04
5.2.30.0080.0339.02
5.2.20.0140.0329.01
5.2.10.0100.0338.92
5.2.00.0090.0398.79
5.1.60.0100.0348.07
5.1.50.0310.0508.07
5.1.40.0150.0728.05
5.1.30.0210.0698.39
5.1.20.0100.0328.43
5.1.10.0070.0388.15
5.1.00.0110.0438.15
5.0.50.0190.0606.64
5.0.40.0070.0516.50
5.0.30.0090.0546.31
5.0.20.0160.0376.28
5.0.10.0110.0336.26
5.0.00.0040.0676.25
4.4.90.0170.0344.77
4.4.80.0150.0364.75
4.4.70.0140.0234.75
4.4.60.0060.0224.76
4.4.50.0050.0404.77
4.4.40.0180.0754.71
4.4.30.0180.0324.76
4.4.20.0140.0314.85
4.4.10.0150.0344.85
4.4.00.0130.0394.75
4.3.110.0060.0274.67
4.3.100.0120.0574.67
4.3.90.0030.0274.63
4.3.80.0140.0374.59
4.3.70.0020.0264.63
4.3.60.0040.0154.63
4.3.50.0060.0154.63
4.3.40.0070.0424.54
4.3.30.0030.0263.31
4.3.20.0040.0233.30
4.3.10.0060.0193.25
4.3.00.0000.03310.37

preferences:
39.51 ms | 401 KiB | 5 Q